Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
  • C11D3/1246—Silicates, e.g. diatomaceous earth
  • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
  • C11D3/1266—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in liquid compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/14—Hard surfaces

Definitions

• the invention relates to a cleanser and use of the cleanser for cleaning a hard article.
• cleansers only provide an instantaneous" cleaning effect and do not have durable easy-cleaning function, so that labor required fo cleaning is increased:.
• many cleansers have a strong alkaline or acidic propert and will result in the damage of a hard article if used for a long time. With the development of society and the progress of technology, the consumer's requirements for cleaning and maintaining a hard article are increasing.
• WO20O O40597 A has described a hard surface cleanser comprising 0.1 to 60% by weight of solid inorganic particles having a c ystaHjnity degree of 25 to 35%, a -particle size of 0.5 to 1.Sum, and a specific surface area of 10 to 50 nfVg,
• the hard surface cleanser disclosed in WO2OO904O597A1 does not relate to the durable easy-cleaning and protective functions
• a cleanser having durable easy-cleaning function is attractive for consumers, because the durable easy-cleaning function enables the decrease of cleaning frequency of a. hard art icle so that labor required for cleaning a bard article can be decreased, the expense required to clean a hard article can be- saved, and the pollution of the environment can be reduced. Considering these requirements of the consumers, there is needed a cleanser having durable easy-cleaning function. Disclos re of She isvefttion
• An object of the invention is to provide a cleanser having durable easy-cleaning function which allows the decrease of cleaning frequency of a hard article and the reduction of pollution of the environment, and use of the cleanser for cleaning a hard article.
• a cleanser comprising an aqueous solvent and 0.05 to 10 % by weight of layered silicate dispersed in the aqueous solvent., wherein the layered silicate has an average specific surface area of 1 00 m g or more.
• the cleanser is in the form of liquid or gel.
• a cleanser having durable easy-cleaning function which allows the decrease of cleaning frequency of a hard article and the reduction of pollution of the environment can be provided.
• the cleanser can reduce labor and expense required for clean ing a hard article due to the decrease of clean ing frequency of a hard article.
• the cleanser further comprises 0.15 to 32 % by weight of a surfactant
• the cleanser may have a pH of 6 to 8 without addition of a pH adjuster.
• a cleanser having both the durable easy-cleaning function and neutral formulation which allows the decrease of clean ing frequency of a hard article and the reduction of poliution of the environment while causing no corrosion to a hard article and no irritation to a hand of an user due to the use of the neutral formulation, can be provided.
• the layered silicate preferably has an average specific surface area of 200 mVg or more, and the content of the layered sil icate is preferably I to 6 % by weight.
• the surfactant is preferably selected from the group consisting of nonionic surfactant, anionic surfactant, cationie surfactant, zwitlenonic surfactant and mixtures thereof.
• the nonionic su rfactant is preferably selected from the group consisting of polyosyethylene type nonionic surfactants, polyol type nonionic surfactants, alkanolamide type nonionic surfactants, fluorocarbon type nonionic surfactants, organosol icon type and modified organosilicon type nonionic surfactants and mixtures thereof.
• the anionic surfactant is preferably selected from the group consisting of carboxylate type anionic surfactant, sulfonate type anionic surfactants, sulfate ester salt type anionic surfactants, phosphate ester salt type anionic surfactants and mixtures thereof.
• the cationie surfactant is preferably selected from the group consisting of heteroeycSe type cation ic surfactants, quaternary ammonium type cationic surfactants and mixtures thereof.
• the zwitter nic surfactant is preferably selected from the group consisting of amino acid type surfactants, betaine type surfactants and mixtures thereof
• the cleanser further comprises a mi ldew inhibitor, an antibacterial agent, a fragrance, a thickener, a pigment, a dye or a mixture thereof.
• the layered silicate is selected from the group consisting of bentonite; montmori ionite; kaolin; purified bentonite, purified montmoriltontte or purified kaolin; ion modified bentonite. ion modified montraoriilonite or ion modified kaolin; and mixtures thereof.
• the hard article may be a ceramic article, a stainless steel article, a glass, article of a polymer article.
• the .cleanser according to the invention comprises an aqueous, solvent and 0.05 to 10 % by weight of layered sil icate dispersed tn the aqueous solvent, wherein the layered silicate has an average specific surface area of 100 nr/g or more.
• the aqueous solvent used in the invention may be water or a .mixture of water and an alcohol or an ether, and preferably water.
• the layered silicate has -a high specific surface area of 1 0 nr/g or more. It is believed that the layered silicate having an average specific surface area of 1.-00 ni7g or more contains many surface active sites, whereb the bonding force with the surface to be cleaned is increased so thai a hydrophilic protection film remains on a hard article when the hard article is cleaned. Due to the presence of the protection film, the hydrophilicity of the hard article can be kept such that the cleaned surface has durable easy-cleaning function, thereby prolonging the period of cleaning the surface to be cleaned. However, in the case where the specific surface area is lower than 100 nr/g, it is
• the layered silicate used in the invention has an average specific surface area of 200 nrVg or more.
• the upper limit of the average specific surface area of the layered silicate Is not particularly limited, although the layered silicate preferably has an average specific surface area of 300nrVg or less.
• the specific surface area can be measured by conventional nitrogen adsorption method (BET met hod ⁇ .
• BET met hod ⁇ BET met hod ⁇ .
• a layered silicate in the mixture may have a specific surface area less than 100 nr/g so long as the average specific surface area of the mixture is 100 nr g or more.
• the average specific surface area of the mixture can be calculated by the follow ing formula:
• the content of the layered silicate is 0.05 to 10% by weight s preferably 1 to 6 % by weight, and more preferably 2 lo 5% by weight based on the total weight of the cleanser.
• the content of the layered silicate is less than 0.05 % by weight, the easy-cleaning property of the cleanser is- decreased.
• the cleanser has a very high viscosity which results in the inconvenience for user.
• the cleanser may consist of the layered sil icate and an aqueous solvent.
• the cleanser may further comprise a surfactant in addition to the layered silicate and the aqueous solvent.
• the content of the surfactant is 0.15 to 32% by weight, preferably 0.5 to 10 % by weight, and more preferably I to 5% by weight based on the total weight of the cleanser.
• the surfactant may be selected from the group consisting of non ' tonic surfactant, anionic surfactant, cation ic surfactant, zwitterionic surfactant and mixtures thereof.
• the rionionic surfactant is preferable.
• the non-ionic surfactant may be selected from the group consisting of polyoxyethyiene type nonionie surfactants such as alkyl phenol polyoxyethyiene ethers, high carbon fatty alcohol
• polyoxyethyiene ethers fatty acid polyoxyethyiene esters, polyoxyethyiene amines, polyoxyethyiene amides, adducts of polypropy lene glycol with ethylene oxide, and polyoxyethy!enated ionic surfactants; po!yoi type nonionie surfactants such as sorbitan esters, and saccharose esters; lkanolami e type nonionie surfactants; lluorocarbon type nonionie surfactants; organostlicon type nonionie surfactants; modiied organostlicon type nonionie surfactants; and mixtures thereof.
• po!yoi type nonionie surfactants such as sorbitan esters, and saccharose esters
• lkanolami e type nonionie surfactants lluorocarbon type nonionie surfactants
• the anionic surfactant may be selected from the group consisting of carboxylate type anionic surfactants; sulfonate type anionic surfactants such as alk l benzene sulfonates, ⁇ -alkene sulfonates, alky!
• sulfonates -su libntonocarboxylates, alkyl tatty acid sulfonates, succinate sulfonates, alkyl naphthalene sulfonates, petroleum sulfonates, !ignio sulfonates, alkyl glyceryl ether sulfonates and the like; sulfate ester salt type anionic surfactants such as fatty alcohol polyoxyethylene ether sulfate ester salts, sodium doctecyi sulfate and the like; phosphate ester salt type anionic surfactants such as phosphate mono- or di-ester salts of fatty alcohol polyoxyethylene ether and phosphate mono- or di-ester salts of a!kyl phenol polyoxyethylene ether; and mixtures thereof.
• sulfate ester salt type anionic surfactants such as fatty alcohol polyoxyethylene ether sulfate ester salts, sodium doc
• the cationic surfactant may be selected from the group consisting of heterocycle type cation ic surfactants such as bigtianides; quaternary ammonium type such as long chain alkyl ammonium
• the z itterionic surfactant may be selected from the group consisting of amino acid type
• surfactants betaine type surfactants such as coconut oil alkyl dimethyl betaine and coconut oil amide propyl betaine: and mixtures thereof.
• the cleanser according to the. invention may further comprise an additive,.
• the additive is selected from the. group consisting of a mildew inhibitor, an antibacterial agent, a fragrance, a thickener, pigment, a dye and/or a ' H adjustor.
• the content of the additive is 0.0001 to 2 % by weight.
• the mildew inhibitor or antibacterial agent may be seieeted from the group consisting of amines, aieohols such as ethanoi, aldehydes, isothiazoles such as 5-chloro-2 ' met «yl-4-jsothiazolin-3-one, imidazoles, esters, chlorine-containing compound ' s, peroxides, carboxylic acids, ani!ides, carbamates such as
• the thickener may be selected from the group ' consisting of an inorganic thickener such as fumed silica, diatomite, attapulgite clay, silica gel; celluloses such as methyl cellulose, h droxylpropyl methyl cellulose, sodium carboxymethyl cellulose, hydroxylethyf cellulose, and salts thereof; natural polymers and derivatives thereof such as starch, gelatin, sodium alginate, casein, guar gum, chltosan, arabic gum, xanthan gum, soyabean protein gum.
• an inorganic thickener such as fumed silica, diatomite, attapulgite clay, silica gel
• celluloses such as methyl cellulose, h droxylpropyl methyl cellulose, sodium carboxymethyl cellulose, hydroxylethyf cellulose, and salts thereof
• natural polymers and derivatives thereof such as starch, gelatin, sodium alginate, casein, guar
• the fragrance may be selected from the group consisting of various synthetic or extracted natural fragrances, such as green apple flavor, lemon flavor, orange flavor and the like.
• the pigment may be selected from the group consisting of organic pigments and inorganic pigments.
• the inorganic pigments may be oxides and salts such as sulfides, sulfates, ehromales and . molyhdates of metals, as well as carbon black.
• the organic pigments may be azo pigments, phihalocyanine pigments, heierocycle pigments, lake pigments, dyes, fluorescent brighteners and fluorescent, pigments.
• the cleanser of the invention may be produced by dispersing the layered silicate powders in an aqueous solvent. Further, if other components are contained, the other components may be further mixed and dispersed in a dispersion of the layered siUcate(s), For example, a certain amount of deiortized water is weighted into a vessel, and a certain amount of the layered silicate powders are then slowly added thereto under high s e d stirring (for example, using a I A high speed disperse)' at a rate of 6500 revolutions/min) and the resulting mixture is continually stirred and dispersed until the powders are completely dispersed.
• high s e d stirring for example, using a I A high speed disperse
• the dispersed liquid is placed at the room temperature or a certain temperature such as 50 °C for a period of time ' such that the layered silicate particles are further dispersed into smaller particles. so as to increase the transparency.
• a surfactant and other additives are then added under low speed stirring (for example, at a rate of 1 0 revolutions/min) and continually stirred for a certain time such that the surfactant and other additives are homogenously dispersed.
• the cleanser of the invention may be used for cleaning a hard article such' as a ceramic article, a stainless steel article, a glass article and a polymer (for example, P A) article and the like.
• the cleanser of the invention is applied to hard article so as to clean the ' hard article directly, or. the cleanser is applied to a cleaning medium and the hard article i then cleaned with the cleaning medium.
• the application may be performed by means of spraying, showering and the like.
• 0.05 g ofbentomte KA517 with a specific surface area of 250 m'Vg was added to 99.95 g of deionized water, dispersed at high speed (13500 revolutions mi n) for 10 mm, and then placed at the room temperature for at least 2 h so as to obtain a transparent liquid having a solid content of 0.05 wi% and a pH range of 7-8.
• the cleanser of the Example 18 was produced in the similar manner to the Example 17. The used conditions and results were shown in the Table 2.
• the cleanser of the Comparative Example 5 was produced in the similar manner to the Example 17. The used conditions and results were shown in the Table 2.
• the cleanser of the Comparative Cxampie 6 was produced in the similar manner to the Example 19. The used conditions and results were shown in the Table 2.
• the surface hydrophiiicity. surface hydrophilicity durability and oil removal performance of the cleansers of the invention produced in the examples were evaluated according to the following measuring methods.
• test sample was put on a 45° tilted stainless steel panel and a water tank was fixed above the sample at a level of 2 meters.
• a stainless steel water pipe with 1 .7 meter length and lc . ro diameter was •vertically placed below the water tank.
• a relay is set to control the water rinsing rate. Each time rinsing duration was 7 s, and the water volume was 800 ml. After water rinsing for 50 times, the surface was
• the snitiai contact angles of the cleansers of the invention were within ! 5°, indicating that the cleansers have excellent hydrophilicity. .
• the contact angles of the cleansers of the invention remain within 22°. indicating that the cleansers have excellent surface hydrophilicity durability, in addition, the cleansers of the invention further have good oil removal performance.
• item 1 is a cleanser comprising an aqueous solvent and 0.05 to 10 % by weight of layered silicate dispersed in the aqueous solvent, wherein the layered silicate has an average specific surface area of 100 m g or more.
• item 2 is the cleanser of item 1 further comprising 0.15 to 32 % by weight of a surfactant.
• Item 3 is the cleanser ' of item 1 or item 2 having a pH of 6 to 8.
• Item 4 is the cleanser of item 1 or item 2 » wherein the layered silicate has an average specific surface area of 200 m 3 /g or more.
• Item 5 is the cleanser of item 1 or item 2, wherein the content of the layered silicate is 1 to 6 % by weight..
• Item 6 is the cleanser of item 2, wherein the surfactant is selected from the group consisting of a nonionic surfactant, an anionic surfactant, a cationic surfactant, a xwit eriomc surfactant and mixtures thereof.
• the surfactant is selected from the group consisting of a nonionic surfactant, an anionic surfactant, a cationic surfactant, a xwit eriomc surfactant and mixtures thereof.
• Item 7 is the c leanser of item 6, wherein the nortionic surfactant is selected from the group
• polyoxyethvlene type nonionic surfactants consisting of polyoxyethvlene type nonionic surfactants, polvoi type nonionic- surfactants, alkanolamide type nonionic surfactants, fluorocarbon type nonionic surfactants, organosiiicon type nonionic surfactants, modified organosiiicon type nonionic surfactants and mixtures thereof.
• Item 8 is the cleanser of item 6, wherein the anionic surfactant is selected from the group consisting of carboxylate type anionic surfactants, sulfonate type anionic surfactants, sulfate ester salt type anionic surfactants, phosphate ester salt type anio ic surfactants and mixtures thereof.
• the anionic surfactant is selected from the group consisting of carboxylate type anionic surfactants, sulfonate type anionic surfactants, sulfate ester salt type anionic surfactants, phosphate ester salt type anio ic surfactants and mixtures thereof.
• Item 9 is the cleanser of item 6, wherein the cationic surfactant is selected from the group consisting of heterocycie type cationic surfactants, quaternary ammonium type cationic- surfactants and mixtures thereof.
• item 1 0 is the cleanser of item 6, wherein the zwitterionic surfactant is selected from the group consisting of amino acid type surfactants, betaine type surfactants and mixtures thereof.
• Item 1 1 is the cleanser of item 1 or item 2 further comprising a mildew inhibitor, an antibacterial agent, a fragrance, a thickener, a pigment, a dye or a mixture thereof.
• Item 1 2 is the cleanser of item I or item 2, wherein the layered silicate is selected from the group consisting of bentofi!te; montmoriilonite; kaolin; piiri fied bentonite, purified montmorillonite or purified kaolin; ion modified bentonite, ion modified montmoriilonite or ion. modified kaolin; and mixtures thereof.
• the layered silicate is selected from the group consisting of bentofi!te; montmoriilonite; kaolin; piiri fied bentonite, purified montmorillonite or purified kaolin; ion modified bentonite, ion modified montmoriilonite or ion. modified kaolin; and mixtures thereof.
• item 13 is the cleanser of item 1 or item 2, wherein the cleanser is in the form of liquid or gel. Use of the cleanser of any one of items I to 13 for cleaning a hard article.
• the hard article is a ceramic article, a stainless steel article, a glass article or a polymer article.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

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Citations (8)

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• 2012
  • 2012-10-11 CN CN201210384352.2A patent/CN103725454A/zh active Pending
• 2013
  • 2013-09-23 WO PCT/US2013/061122 patent/WO2014058603A1/fr not_active Ceased
  • 2013-09-23 JP JP2015536789A patent/JP2015532337A/ja active Pending
  • 2013-09-23 US US14/435,024 patent/US20150225672A1/en not_active Abandoned
  • 2013-09-23 EP EP13773511.4A patent/EP2906673A1/fr not_active Withdrawn

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